Thursday, Jan 16, 2014 - 2:00 AMWithin the last decade, scientists and explorers have discovered a quarter of a million new species. This program showcases the most extraordinary. These creatures that no one had dreamed existed, have scientists in a spin and are causing textbooks to be rewritten. They include the world's longest insect, one of the rarest mammals on Earth, and a carnivorous pitcher plant big enough for a human fist to fit inside.G